Transient Sensitivity Computations for Large-Scale MOSFET Circuits Using Iterated Timing Analysis and Adaptive Direct Approach

摘要

Transient sensitivity information is useful in many EDA tools such as circuit optimizers. In this paper, we investigate the transient sensitivity computations in large-scale MOSFET circuits. Iterated Timing Analysis (ITA) is used as the fundamental algorithm to undertake both timing and sensitivity simulations. A modified Direct Approach for sensitivity computation is proposed, which is called Adaptive Direct Approach that considers the number of design parameters and sizes of subcircuits. All proposed methods have been implemented and tested to justify their outstanding performance better than previous works.